Quantum heat engine based on level degeneracy

George Thomas, Debmalya Das, Sibasish Ghosh

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
103 Downloads (Pure)


We study a quantum Stirling cycle which extracts work using quantized energy levels of a potential well. The work and the efficiency of the engine depend on the length of the potential well, and the Carnot efficiency is approached in a low temperature limiting case. We show that the lack of information about the position of the particle inside the potential well can be converted into useful work without resorting to any measurement. In the low temperature limit, we calculate the amount of work extractable from distinguishable particles, fermions, and bosons.

Original languageEnglish
Article number012123
Pages (from-to)1-7
JournalPhysical Review E
Issue number1
Publication statusPublished - 17 Jul 2019
MoE publication typeA1 Journal article-refereed

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